Outside of funhouses and roller rinks, warped floors are usually considered a defect rather than a virtue. They make it impossible to place furniture (unless you like wobbly tables), are the bane of health and safety nuts (two words: trip hazard) and often warrant a call to a contractor (it’s possible the subfloor needs replacing).
But avant garde architects and interior deisgners have been embracing uneven surfaces for the past few years. It’s partially for the aesthetics — there’s something undeniably striking, even if disconcerting, about a rippling ground plane — and partially for the health benefits. An influential 2005 study by the Oregon Research Institute suggested that walking on uneven terrain lowers blood pressure and improves balance (which diminishes the inherent trip risks). The scholarship only confirmed what practitioners of traditional Chinese medicine have long believed — that walking on challenging topography is a good idea (which is why many elderly in China make a routine of strolling, dancing and standing on rugged, cobblestone walking paths).